Apparatus for separating and binding dust or other impurities in combustion air of combustion engines



2 Sheets-Sheet l 'Aprll 14, 1925.

v l K. SCHROEDER APPARATUS FOR SEPARATING AND BINDING DUST OR OTHERIMPURITIES IN CoMBUsTIoN AIR oF GOMBUSTION ENGINES Filed March 50. 1921Qi/Madam:

April 14, 1925. v 1,533,813

' K. SCHROEDER APPARATUS FOR SEPARATING AND BINDING DUST OR OTHERIMPURITIES 'IN' COMBUSTION AIROF COMBUSTION ENGINES Filed March 30. 19212 Sheets-Sheet 2 KARL SCHREDER, orDUssELDoRF, GEnMANxnssI-GNOR troy THELanz, or MANNHErM, GERMANY.

, ing of dust or other impurities contained in Patented Apr.' 14,192,5.4

. UNITED STATES PATENT oFFicE.

FIRM HEINRICH QAPARATUSFOR SEPARATING AND BINDING .DUST-0R OTHERIMPURITIES IN COM- BUSTION AIR 0F COMBUSTION 'ENGINES'.

'l Application led March 30, 1921 Serial No. 456,965.

To all whom t may concern.'

citizen of the Republic of Germany, residing at Dusseldorf, Germany,have invented certain new and useful Improvements in an apparatus forseparating and binding. dust or other impurities in combustion a1r ofcombustion engines, of which the following is a specification.

This invention relates to a novel method of an apparatus for theseparating and bindthe air, which as combustion air, in combustionenginesis sucked-up for the formation of the explosiveminture.

rllne first feature of this invention consists in' the use of oil forthe binding of the dust particles and other impurities of the air.According to my invention however, such oil vapours are used as aresucked-up 'from the motor crank case to the apparatus, and which arevmixing with the air in themterior of the apparatus. U

The separatingand binding `of the dust by means of such oil vapours asaiesuckedup from the motor crank case, for instance by an injectordevice, is accomplished in such a manner as to cause the air of the`motor crank'case, which is to be purified from dust and otherimpurities, closely to mix with the sucked-up oil-vapours, binding thusby means of the oil particles the particles of dust and other impuritiescontained in the air.

Thesecond feature of thisinvention lays in the fact that the mixtureconsisting of oil vapours and air, is on its further way forced againstobstacles or impact surfaces, on which beth-the said oil particles andthe dust particles are depositedl and collected.

Said obstacles or impact surfaces are formed hy concentric cylinders,thc walls of which are perforated. while the edges of the perforationholes are projecting to the interior of the apparatus, thus in anopposite direction to the air current. rangement eddiesare formed 'inthe mixture whereby the oil containing the impurities is deposited andretained. n

The intimate mixture of the air with the oil. vapours, and furthermorethe streng tion, attained by sucking-up the oil vapeurs By this arwiththe inductional current b `means of suction or injection pressure. ioreover, the desired end is attained'by forcing the mixture against theimpact surfaces.

The close and intimatejmixture is thus achieved: Firstly by the factthat the oil is sucked-up with the induetionalcurrent4 by injectorpressure; and secondly by the action of the impact surfaces.

Figure .1 represents a vertical section of an apparatus forseparatingand binding dust in the combustionair of combustion engines and by meansof which my novel method vcan be carried out in practice. Figure 2represents, in sectional elevation, an internal combustion engine' inconjunction with which'an apparatus embodying my invention is employed.i

The air required for the formation of the I mixture is introduced bythesuction pipe a, passes on its vway to the cylinders orearburettorsthrough the injector Into said injector b opens the pipe c which leadsto the motor crankcase d. The oil vapours ofj is caused infront'of andbetween said plates a strong movement -of eddies and thereby obtained anvintense bumping `and backstroke motion ofthe air, i. e., of the dustand oil particles, thus closely binding the dust particles by means ofthe oil particles, whilc,.on thc other hand,l the Oil particles havesufficient opportunity to collect on the impact surfaces.

The construction of the combined filter and injector is performed asfollows:

rlChe cap g, together with the core 71. formthe injector b, and at itsupper end being provided with the handler, is screwed on to `the pipe cand may be welded together 4with the latter at It. rfhe through theguides Z turnstile -m of the cove serted into the casing o,

pipe c is inserted ning a part of the which by means of nol n, andfurther inthe bolt p is mounted to the suction pipe g. With the turninof the handle i the cover n is fastened to t e casing o by means of thethread 1' and tightened by the packin ring s. `T'he suction pipe a isnovv inserte into the opening providedv in the cover fn. The filtercoiisists of two'plates t and u between which' plates are arranged thecylindrical grater plates. The filter plates eQare held in theirposition by the distance rings fu, While the filter is screwed toth'e'cover n by means of the` bolts fw.

In Figure 2, I have shown the apparatus for binding dust in assembledrelationship with respectsto an internal combustion engine of aconventional type,it bein ,under stood that the type 'f engine emp oyedis' immaterial. The casing oI has connected withpit a suction pipe .gleading tothe carburetor 1 and which'leads' to the valve controlledinlet 3 of the casing. The suction pipe c communicates with the 'crankcase 2. 4 designates the engine cylinder, 5 the piston, and 6 theconnecting rod. The appaleft of the connectin ratus is arranged behindthe plane of section of the cylinder 4. The crank case on the rod 6 issho-wn in a section lying behind t e drawn plane of section vof thecylinder 4 for the purpose of showing'a part of the suction pipegV also-i'n section. Besides the, pipe g is drawn out (on the right side of theconnecting rod) from which it is to be seen that for .purposeofillustration only, the pipe g is going throughthegcrank case.

What I claim as my invention and desire to'secure-by'Letters Patent is:-

lfApparatus of the. character stated, comprislng means for mixing oilvapors fwith atmo heric air, a separator consisting of a plurallty' of saced, concentrically arranged, perforate impact plates, and

means `for causing said mixture to progres sively impinge against saidplates to cause binding 'of dust particles with oil particles,

the latter being caused to-adhere to the sur! character stated, Y

said mixture to pass to the central chamber of said separator and tothereafterpro essivelyimpinge against said. impact p ates to causebinding of dust particles with oil particles, the latter being caused toadhere to jthe surfacesv of said impact plates.

3, Apparatus of the character stated, comprising 'a separatorconsistingof a plurality of concentrically arranged, spaced andperforated impact plates to provide a central chamber open top andbottom and 'a plu-v rality of annular chambers closedtop andbottom,piped means vfor -convey'ng oil vapors through the central chamber oseparator, means for lmixing said vapor said with-'atmospheric airbeyond said separator, y

and means for causing said .mix ture to pass to the central chamber ofsald separator and to 4thereafter rogressivelyimpinge a ainst saidimpact p ates to cause binding o dust.

particles with oil particles, the latter being caused to adhere to thesurfaces of said im pact plates.

i In tejtimony whereof Iaiiix my signature in presence of two witnesses.

'KARL SCHROEDER, Witnessesz.

CARL'A PAUL Essie

